chase



(NoModeI.)

A. J. CHASE.

REFRIGERATEUR.

.IMMHU Mein/me N. Pneus. mmmnugnpmr. waihingmn. nc;

UNITED STATES i PATENT OFFICE.

ANDREW J. CHASE, 'or EoSToE, MASSACHUSETTS, ASSIGNCE To CHILDS, CHASE a co., or SAME PEACE.

-REFRieERA-TOR.-

SPECIFICATION forming part of Letters Patent No., 324,229, dated August 11, 1885.

Application filed March A21, 1885. (No model.)

To @ZZ whom it may vcon/cern:

Beit known that I, ANDREW J. CHAsE, a citizen of the United States, residing at Boston, Massachusetts, have invented new and useful Improvements in Refrigerators, of which the following is a specification. A

This invention relates to a method of refrigeration by artificial means, in which the freezing mixture or agent is made to circulate through. pipes placed within the room or chamber to be cooled, in order to effect the automaticand continuous cooling and circulation of the air present in said chamber or room.

Heretofore refrigeration by artificial means has been accomplished by pipes arranged as above indicated, said pipes containing the freezing mixture or agent for producing cold. It has been found that said pipes soon become coated with frost, and that finally they will contain a large amount of congealed moisture on their exterior or exposed surfaces. If for any reason the machine for effecting a circulation of the freezing-mixture should cease to bein action, even for a brief time, the frost would undergo liquefaction and fall to the floor of the preserving-chamber, and then the increasing temperature, combinedl with the .moisture, would soonehange the preservingchamber into one well suited to destroy perishable articles. In order to avoid such aresult it is ordinarily absolutely necessary to maintain the refrigerating-maehine in constant operation. Furthermore, when ice is used as a cooling agent, and is manufactured by any kind of ice-machine, the same must necessarily be exposed to the temperature of the outside atmosphere before it can be placed in the refrigerating-chamber.l

It is the aim and object of the present invention to avoid these objectionable features of artificial refrigeration by producing ice by artificial means in the chamber or room to be cooled or refrigerated, said ice being formed in receptacles arranged within the refrigerating chamber or space to be refrigerated in such a manner as to afford open perpendicular spaces to allow of a free circulation of dry cold air. rlhese tanks or receptacles are supplied with water, and contain coils of pipe through 5o which the freezing agent is made to circulate by properly connecting said pipes with an ice `or refrigerating machine of any approved type. the pipes will soon congeal the water in the receptacles into ice, and the process being eon- 5 5 tinuousl y carried out the tanks become a frost- -bearing plant, presenting a large condensingsurface to the air.

The freezing agent circulating through The latter, by virtue of its passage between the ice-containing receptacles, becomes cold and dry, and hence it 6o readily descends into the refrigerating or preserving chamber below, and the space thus left vacant is immediately occupied by the warmer air ascending from below, which then goes through the same process of giving up its heat and moisture. For these reasons cold dry air is eontinuouslyproduced and used for refrigerating the contents of the chamber in which the ice-forming devices are located.

rIhe most important feature, however, of 7o my method is that a heat-absorbing element is generated and stored up during the working hours of the day when the refrigeratingmachine is in operation, and thus whenthe action of the latter isdiseontinued at night or any other time-for example, when making repairs-the ice present in the chamber will become the refrigerating agent and subserve the function of naked ice, as will readily be apparent. Another advantage inherent in 8o my method is due to the fact that while a volume of ice can melt away and become weaker, accompanied by a rise of the temperature of the surrounding air, it is nevertheless true that ice-water is the same in degree of temperature-that is, 32 Fahrenheit-whether it contains a ton of ice lor only an ounce. For this reason it is obvious that in my process the temperature of the preserving-chamber will be held stationary from the time the ice 9o begins to melt until the last vestige llas been consumed, and even then the water remains ready to be againl congealed.

In the accompanying drawings, Figure 1 is an upright cross-section showing the preserv- 9 5 ing-room below and one section or row of iceproducing tanks separated from the room below by an insulated bottom. Fig. 2 is a modification showing an arrangement of open tanks adapted for the circulation of a freezingroo mixture.

The reference numeral l designates the walls of a room or chamber, 2, to be refrigerated, suoli walls being made double,and insulated, as shown at 3, by means oi' any suitable material capable of making said walls noneonduetors of heat and cold.

In the upper portion of the chamber 2 is located the chamber l, which receives the refrigerating devices or agents. Said chamber is formed by the vertical walls 5 and the bottom inclined floor, 6, cach being double, and insulated Wby suitable packing, as is shown at 7, to provide non-heatconduct-ing surfaces which terminate in proximity to the top wall and one of the side walls of the preserving room or chamber, as shown at S and 9, to allow of the circulation of the inclosed air. The inclined door (i is provided with a ledge, 10, at its lower end, so as to form a driptrough which is in communication with a suitable dischargepipe for the water of condensation. The refrigeratiiig-chamber 4 contains a wooden perforated bottom or grated tloor, 10, v

upon which rest a series of vertical tanks, 11, having closed sides and bottom and an open top. These tanks are generally made of galvanized iron and are present in any desired number, and they are arranged in rows or series, one row only being shown in the drawings.

A coil of pipe or a serpentine pipe, 12, traverses each series or row of ta-nks and is connected at its ends with the devices for foreing a refrigerating agent into the pipes and receiving said agent back again to be again forced. The refrigerating agent or mixture used may be ofv any desired nature, and the,

machine for ci'eeting the circulation of said agent may also be of any approved type. The tanks are designed to be illed with water, which is eongealed and converted into ice by the circulation of the refrigerating agent through said tanks ina manner common to ordinary ice-inachines.

The air inclosed in the preserviiig-chamber passes between the series of ice containing or refrigeiating vessels, and circulates through the preserviiig-chamber in the same manner as has already been indieated,and is specially described in my patent granted August 19, 1884, No. 303,805.

' Instead of using ice produced according to the foregoing method within the preservingchamber, I may also use the freezing-mixture itself as the refrigerating agent. Such idea is indicated in Fig. 2, where the tanks 1.1 receive pipes 16, connected with the main supply-pipe 17 of a brine or pickle forcing apparatus. These pipes 16 descend to near the bottom of the tanks, and the pickle admitted into the latter is made to overflow the same, and makes the same circuit as though it was in the pipes. The pipes being iilled with a pickle or mixture which takes on a lower temperature before congelation can take plaee,it is evident that such pickle ina liquid state may be used as a freezing or refrigerating agent.

l. rl`he combination, with a preservingchamber, of a condensing-chamber having inner insulated walls, a series of tanks or vessels arranged within the innerinsulated walls of the condensing-chamber and adapted to hold a circulating and refrigerating agent,and passages formed between and around said tanks or vessels and between the inner and outer walls of the condensing chamber, substantially as herein set forth.

2. The combination, with a preservingchamber, of a series of tanks or open vessels adapted to contain water to be converted into ice, pipes traversing said Vessels for the circulation of a freezing agent, and passages formed between and around said ice-forming vessels for the circulation of air, substantially as herein set forth.

3. The combination, with a preserving-clamber and a condensing-chamber having inner insulated walls and an inclined insulated bottom, of a series of vertical tanks or vessels arranged within the inner insulated walls of the eondensiiig-chamber and adapted for the circulation of a refrigerating agent, and passages formed between and around said tanks or vessels and between the inner and outer walls ofthe condensi 11g-chamber,substantiall y as herein set forth.

In testimony whereof I have affixed my signature in presence of two witnesses.

ANDREV J. CHASE.

Vitnesses:

WARREN A. Ciusn, Fisnnn Aimes. 

